Light Up Neck Tie by Glowseen,LED Light Neck Tie, EL Flashing Neck Ties For Party Show- (Constantly Illumination by Battery Operated) Be seen for your party Show. Adjustable zipper strap, length fits all sizes. Manual control , you can adjust Red /Green/Blue/Purple and RGB color changing as you like. Lighting mode: Constant on /flashing ; Powered by Compact CR2032 Battery(included) ;Battery Pack attaches to the back of the tie with velcro. It can be widely used in Night club, Disco, KTV, Bar, Banquet, Party, Floor show, Stage show, Evening show, Performance show, Vocal concert, Carnival, Wedding dinner, Lounge, Cafe, variety of fashion shows & Nightly entertainments and some other Special Events. let you become a eye catcher!